Experimental Study on Application Performance of Super Fast Hard Concrete Repair Product
In view of the common problems in the practical application of phosphate cement-based products(repair king),the effects of water consumption on its workability,strength and wear resistance are compared and analyzed.The results show that when the water consumption is increased from 6%to 10%,the working performance of repair king concrete is significantly improved,segregation phe-nomenon gradually appears,and the compressive strength of concrete is reduced by 4～5 grades,the wear amount of concrete increases by 3～6 times.When the water consumption is 8%,slump expansion of concrete is 590 mm,7 d compressive strength is 62.5 MPa,and 7 d wear amount is 1.912 kg/m2,which can meet the requirements of conventional repair.
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